The files in the first partition are:DISKBOOT.BIN PS.FI2
In the second partition are:PS.FI2 changelog.txt readme.txt
No other directories ?
No. I used the old backps, I thinks its a small build.
If you downloaded the file you linked and installed it properly, there should be subdirectories.
I installed again (with no success) the 1.0.0 stable version and the contents are:
1st disk:DISKBOOT.BIN PS.FI2
2nd disk:CHDK PS.FI2 changelog.txt readme.txt vers.req
./CHDK:
BOOKS FONTS LANG SYMBOLS
CURVES GAMES LUALIB syscurves.CVF
DATA GRIDS SCRIPTS
./CHDK/BOOKS:
readme.txt
./CHDK/CURVES:
readme.txt
./CHDK/DATA:
GPS_Kreis.txt GPS_Sat.txt GPS_Track_2.txt logo.dat
GPS_Pfeil.txt GPS_Track_1.txt GPS_Track_3.txt
./CHDK/FONTS:
AriUni14.rbf Geor16B.rbf Times14.rbf
Arial14.rbf Gill14.rbf Times14b.rbf
Arial14b.rbf Gill14B.rbf Times16.rbf
Arial16.rbf LucSC14.rbf Times16b.rbf
Arial16b.rbf Lucida14.rbf Times18.rbf
Arial18.rbf Lucida16.rbf Times18b.rbf
Arial18b.rbf Lucida18.rbf Times20.rbf
Arial20.rbf Lucida20.rbf Times20b.rbf
Arial20b.rbf Menu-A16b.rbf Verd14.rbf
ArilGR14.rbf Menu-A20.rbf Verd14B.rbf
BookAn14.rbf Menu-AN18b.rbf Verd14BI.rbf
Cour14B.rbf Menu-AN20b.rbf Verd16.rbf
Cour14BI.rbf Tahoma14.rbf Verd16B.rbf
Cour16B.rbf Tahoma14b.rbf Verd16BI.rbf
Courier14.rbf Tahoma16.rbf Verdana14.rbf
Courier14b.rbf Tahoma16b.rbf Verdana14b.rbf
Courier16.rbf Tahoma18.rbf Verdana16.rbf
Courier16b.rbf Tahoma18b.rbf Verdana16b.rbf
Courier18.rbf Tahoma20.rbf Verdana18.rbf
Courier18b.rbf Tahoma20b.rbf Verdana18b.rbf
Courier20.rbf TimNR14.rbf Verdana20.rbf
Courier20b.rbf TimNR14B.rbf Verdana20b.rbf
Garam14B.rbf TimNR14BI.rbf arialround16.rbf
Garam16B.rbf TimNR16B.rbf arialround18.rbf
Geor14B.rbf TimNR16BI.rbf
./CHDK/GAMES:
SOKOBAN.LEV
./CHDK/GRIDS:
3to2grid.grd golden2.grd rulecross.grd stolen.grd
3to8grid.grd id.grd rulers.grd third_h.grd
golden1.grd readme.txt sports.grd third_v.grd
./CHDK/LANG:
croatian.lng estonian.lng greek.lng portuguese.lng spanish.lng
czech.lng finnish.lng hungarian.lng romanian.lng turkish.lng
dutch.lng french.lng italian.lng russian.lng ukrainian.lng
english.lng german.lng polish.lng slovak.lng
./CHDK/LUALIB:
GEN capmode.lua propcase.lua uartr.lua
binstr.lua drawings.lua readme.txt
./CHDK/LUALIB/GEN:
README.TXT propset1.lua propset3.lua
modelist.lua propset2.lua propset4.lua
./CHDK/SCRIPTS:
EDITOR default.bas interval.bas motion.lua shoot.lua
EXAM hdr.bas interval.lua readme.txt
TEST hdr.lua motion.bas shoot.bas
./CHDK/SCRIPTS/EDITOR:
EDI.lua README.TXT
./CHDK/SCRIPTS/EXAM:
countdown.lua input_1.lua metronome.lua remote.bas tv_uni_e.lua
eggtimer.bas lotto.lua paramdmp.lua stopwatch.lua
./CHDK/SCRIPTS/TEST:
drawtest.lua romlog.lua setmode.lua setrec.lua uartrtst.lua
llibtst.lua setmode.bas setrec.bas tstcallf.lua ubtest.bas
./CHDK/SYMBOLS:
icon_10.rbf icon_16.rbf
Also, the symptoms you describe are usually cause by loading the wrong firmware version ( i.e. any chance that your cameras is not a 1.00e ?).
Yes I'm sure that is the right version, I've checked with ACID and the vers.req method. I've tried all the CHDK available for G12 for all the firmware versions and the behavior was different. With the wrong versions the camera won't turn on when using the bootable method, and when using firmware update method the camera shuts down but keeps the led of the power button on. When I'm using CHDK for the right firmware version, the camera turns on and almost boot but then it turns off immediately in both the boot method and the firmware update.
Thanks you.
Tomé